from celery import current_app
from flask import g, jsonify
from flask import session,redirect
from flask import url_for
import time
from datetime import datetime,timedelta
from info import constants
from info import db
from info.models import User, Category, News
from info.utils.image_storage import storage
from info.utils.response_code import RET
from . import admin_blue
from info.utils.commons import login_required
from flask import request,render_template

# 管理员首页
@admin_blue.route('/index')
@login_required
def admin_index():
    user = g.user
    if user:
        return render_template('admin/index.html',user=user.to_dict())
    return render_template('admin/index.html')

# 管理员登录
@admin_blue.route('/login',methods=['GET','POST'])
def admin_login():
    if request.method == 'GET':
        user_id = session.get('user_id',None)
        is_admin = session.get('is_admin',False)
        if user_id and is_admin:
            return redirect(url_for('admin.admin_index'))
        return render_template('admin/login.html')
    user_name = request.form.get('username')
    password = request.form.get('password')
    if not all([user_name,password]):
        return render_template('admin/login.html', errmsg='参数不完整')

    try:
        user = User.query.filter(User.mobile == user_name,User.is_admin==True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/login.html', errmsg='数据库查询错误')
    if user is None or not user.check_password(password):
        return render_template('admin/login.html', errmsg='账号或者密码错误')
    session['user_id'] = user.id
    session['mobile'] = user.mobile
    session['nick_name'] = user.nick_name
    # 必须要缓存is_admin字段，用来确认用户是管理员还是普通用户
    session['is_admin'] = user.is_admin
    return redirect(url_for('admin.admin_index'))

# 用户活跃度
@admin_blue.route('/user_count')
def user_count():
    """
    查询人数：用户总数，用户月新增数，用户日新增数
    :return:
    """
    # 总人数
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin==False).count()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR,errmsg='查询总人数失败')
    # 当月1号到当天注册人数,查询时间
    t = time.localtime()
    # 定义每月的开始日期2018-10-01
    mon_begin_data_str = '%d-%02d-01'%(t.tm_year,t.tm_mon)
    mon_begin_data = datetime.strptime(mon_begin_data_str,'%Y-%m-%d')
    mon_count = 0
    # 查询数据，比较日期
    try:
        mon_count = User.query.filter(User.is_admin==False,User.create_time>mon_begin_data).count()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR,errmsg='查询月人数失败')
    # 日新增人数
    day_count = 0
    day_begin_data_str = "%d-%02d-%02d"%(t.tm_year,t.tm_mon,t.tm_mday)
    day_begin_data = datetime.strptime(day_begin_data_str,"%Y-%m-%d")
    # 查询数据，比较日期
    try:
        day_count = User.query.filter(User.is_admin==False,User.create_time>day_begin_data).count()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR,errmsg='查询日增人数失败')
    # 重中之重  统计用户活跃度/活跃时间
    active_count = []
    active_time = []
    # 获取当前日期
    now_date_str = "%d-%02d-%02d"%(t.tm_year,t.tm_mon,t.tm_mday)
    # 格式化日期对象
    now_date = datetime.strptime(now_date_str,'%Y-%m-%d')
    # 循环往前推31天，获取每天的开始时间和结束时间
    for d in range(0,31):
        begin_date = now_date-timedelta(days=d)
        end_date = now_date-timedelta(days=(d-1))
        try:
            count = User.query.filter(User.is_admin==False,
                                      User.last_login>=begin_date,User.last_login<end_date).count()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.DBERR,errmsg='查询活跃人数失败')
        active_count.append(count)
        begin_date_str = datetime.strftime(begin_date,'%Y-%m-%d')
        active_time.append(begin_date_str)
    active_time.reverse()
    active_count.reverse()
    data = {
        'total_count': total_count,
        'mon_count': mon_count,
        'day_count': day_count,
        'active_count': active_count,
        'active_time': active_time
    }
    return render_template('admin/user_count.html',data=data)


# 所有用户
@admin_blue.route('/user_list',methods=['GET'])
def user_list():
    """

    :return:
    """
    p = request.args.get('p', 1)
    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        p = 1
    # 定义容器
    li = []
    # 默认查询第一页
    page = 1
    # 默认当页就1条数据
    per_page = 1
    try:
        paginate = User.query.filter(User.is_admin == False).order_by(User.last_login.desc()).paginate(p, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)
        li = paginate.items
        page = paginate.page
        per_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)
    us_list = []
    for user in li:
        us_list.append(user.to_dict())
    data = {
        'currentPage':page,
        'user_list':us_list,
        'totalPage':per_page
    }
    return render_template('admin/user_list.html',data=data)

# 新闻版式编辑
@admin_blue.route('/news_edit')
def news_edit():
    """
    :return:
    """
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords", "")
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1

    try:
        filters = []
        # 如果有关键词
        if keywords:
            # 添加关键词的检索选项
            filters.append(News.title.contains(keywords))

        # 查询
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_dict())

    data = {
        "total_page": total_page,
        "current_page": current_page,
        "news_list": news_dict_list
    }
    print(1)
    return render_template('admin/news_edit.html', data=data)

# 新闻版式编辑详情
@admin_blue.route('/news_edit_detail', methods=["GET", "POST"])
def news_edit_detail():
    """新闻编辑详情"""
    if request.method == 'GET':
        # 获取参数
        news_id = request.args.get("news_id")

        if not news_id:
            return render_template('admin/news_edit_detail.html', data={"errmsg": "未查询到此新闻"})

        # 查询新闻
        news = None
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)

        if not news:
            return render_template('admin/news_edit_detail.html', data={"errmsg": "未查询到此新闻"})

        # 查询分类的数据
        categories = Category.query.all()
        categories_li = []
        for category in categories:
            c_dict = category.to_dict()
            c_dict["is_selected"] = False
            if category.id == news.category_id:
                c_dict["is_selected"] = True
            categories_li.append(c_dict)
        # 移除`最新`分类
        categories_li.pop(0)

        data = {
            "news": news.to_dict(),
            "categories": categories_li
        }
        return render_template('admin/news_edit_detail.html', data=data)

    news_id = request.form.get("news_id")
    title = request.form.get("title")
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    category_id = request.form.get("category_id")
    print(title,digest,category_id,content)
    # 1.1 判断数据是否有值
    if not all([title, digest, content, category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到新闻数据")

    # 1.2 尝试读取图片
    if index_image:
        try:
            index_image = index_image.read()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

        # 2. 将标题图片上传到七牛
        try:
            key = storage(index_image)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.THIRDERR, errmsg="上传图片错误")
        news.index_image_url = constants.QINIU_DOMIN_PREFIX + key
    # 3. 设置相关数据
    news.title = title
    news.digest = digest
    news.content = content
    news.category_id = category_id

    # 4. 保存到数据库
    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存数据失败")
    # 5. 返回结果
    return jsonify(errno=RET.OK, errmsg="编辑成功")

# 新闻审核
@admin_blue.route('/news_review')
def new_review():
    """
    获取p参数，转换p位int，
    查询未审核的新闻，以分页的形式，按写作时间的升序排列

    :return:
    """
    p = request.args.get('p',1)
    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        p = 1
        return jsonify(errno=RET.PARAMERR,errmsg='获取参数,转换数字失败')
    # 查询数据
    new_list = []
    current_page = 1
    total_page = 1
    try:
        paginate = News.query.filter(News.status != 0).order_by(News.create_time.asc()).paginate(p,constants.ADMIN_NEWS_PAGE_MAX_COUNT,False)
        new_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR,errmsg='查询未审核新闻数据失败')
    news_li = []
    for news in new_list:
        news_li.append(news.to_dict())
    data = {
        'page':current_page,
        'total_page':total_page,
        'news_li':news_li
    }
    return render_template('admin/news_review.html',data=data)

# 审核新闻是否通过
@admin_blue.route('/news_review_detail',methods=["GET", "POST"])
def news_review_detail():
    """

    :return:
    """
    # 获取新闻id
    if request.method == 'GET':
        news_id = request.args.get("news_id")
        if not news_id:
            return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

        # 通过id查询新闻
        news = None
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)

        if not news:
            return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

        # 返回数据
        data = {"news": news.to_dict()}
        return render_template('admin/news_review_detail.html', data=data)

    # 1.获取参数
    news_id = request.json.get("news_id")
    action = request.json.get("action")

    # 2.判断参数
    if not all([news_id, action]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    if action not in ("accept", "reject"):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    news = None
    try:
        # 3.查询新闻
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到数据")

    # 4.根据不同的状态设置不同的值
    if action == "accept":
        news.status = 0
    else:
        # 拒绝通过，需要获取原因
        reason = request.json.get("reason")
        if not reason:
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
        news.reason = reason
        news.status = -1

    # 保存数据库
    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="数据保存失败")
    return jsonify(errno=RET.OK, errmsg="操作成功")

# 新闻分类
@admin_blue.route('/news_category')
def get_news_category():
    # 获取所有的分类数据
    categories = Category.query.all()
    # 定义列表保存分类数据
    categories_dicts = []

    for category in categories:
        # 获取字典
        cate_dict = category.to_dict()
        # 拼接内容
        categories_dicts.append(cate_dict)

    categories_dicts.pop(0)
    # 返回内容
    return render_template('admin/news_type.html', data={"categories": categories_dicts})

# 添加修改新闻分类
@admin_blue.route('/add_category', methods=["POST"])
def add_category():
    """修改或者添加分类"""
    print(0)
    category_id = request.json.get("id")
    category_name = request.json.get("name")
    if not category_name:
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    # 判断是否有分类id
    if category_id:
        try:
            category = Category.query.get(category_id)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.DBERR, errmsg="查询数据失败")

        if not category:
            return jsonify(errno=RET.NODATA, errmsg="未查询到分类信息")

        category.name = category_name
    else:
        # 如果没有分类id，则是添加分类
        category = Category()
        category.name = category_name
        db.session.add(category)

    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存数据失败")
    return jsonify(errno=RET.OK, errmsg="保存数据成功")

